/Engine/Source/Runtime/Engine/Classes/Animation/AnimInstance.h
Makes a montage jump to a named section. If Montage reference is NULL, it will do that to all active montages.
void Montage_JumpToSection ( [FName](API\Runtime\Core\UObject\FName) SectionName, const [UAnimMontage](API\Runtime\Engine\Animation\UAnimMontage) * Montage )